For weak interfaces, the composite exhibits very high apparent toughness up to 20 MPam1/2 with a moderate strength of about 600 MPa, while for tight interface, the composite fractures behave like monoliths and give a high strength of over 1000 MPa.

• 在结合力很强时，层状材料具有与块状材料相同的破坏方式，强度出现极值，达到1000MPa以上； 在结合力较弱时，隔离层能够反复偏折裂纹，层状材料表现出高达20MPam1/2的表观断裂韧性和约600MPa的强度。